3M 7100098789 Aluminum Oxide Precision Cartridge Roll 60 Grit

Product Description

The 3M 7100098789 is an aluminum oxide precision cartridge roll designed for high-speed grinding and deburring on ferrous metals. Cataloged as Model C with a straight cylinder profile, this roll features a 1/4-inch drive stem permanently affixed within the roll core and resin-bonded to the inner layers. That solid construction allows the roll to handle larger rotary tools and higher applied pressure without loosening or vibration. With a 60-grit abrasive surface and a multi-layer build that continuously exposes fresh abrasive, it delivers consistent material removal over the life of the roll. Licensed HVAC, metal fabrication, and industrial maintenance technicians reach for this type of tooling when working irregular contours and hard-to-reach areas.

This cartridge roll is intended for use on ferrous metals in applications that require tight-tolerance grinding and precision deburring. The straight cylinder shape follows irregular contours and interior radii with minimal setup. Its compact dimensions make it well-suited for die grinders and similar high-speed rotary tools used in metal fabrication, maintenance, and repair work. The roll measures 1 inch in diameter and 2.5 inches in length, making it a practical choice for confined workspaces where a standard sanding drum will not fit.

Key Features

• Affixed 1/4-inch drive stem protrudes approximately 5/8 inch into the core, reducing loosening and vibration during high-speed operation
• Resin-bonded construction supports use with larger tools and higher contact pressure
• Multi-layer aluminum oxide abrasive design continually reveals fresh grit for extended service life
• Straight cylinder profile follows irregular contours and reaches tight internal areas
• 60-grit rating suited to aggressive deburring and material removal on ferrous metals
• Compact size compatible with high-speed die grinders and similar rotary tooling

Compatibility

Designed for use on ferrous metals with high-speed rotary tools that accept a 1/4-inch drive stem. Model C construction is suitable for use with larger tools requiring higher pressure applications.

Installation Notes

Mount the cartridge roll onto a compatible 1/4-inch collet or mandrel and confirm the stem is fully seated and the collet is tightened before operation. Always wear appropriate personal protective equipment including eye protection and gloves when grinding or deburring. Inspect the roll for damage or uneven wear before each use and replace if the abrasive layer is depleted or the stem shows signs of loosening. Follow the tool manufacturer's recommended RPM rating and do not exceed the roll's rated operating speed.

Technical Specifications

• Abrasive Material: Aluminum Oxide
• Grit: 60
• Model: C
• Drive Stem: 1/4 inch, affixed
• Diameter: 1 inch
• Length: 2.5 inches
• Unit of Measure: Roll
• Minimum Order Quantity: 25
• Weight: 0.125 pounds

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100098789